Materials Literature
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Epitaxial (1−x)BaTiO3−xBi(Mg0.5Ti0.5)O3 films with x = 0 − 0.9 were grown on (111)cSrRuO3//(111)SrTiO3 substrates by pulsed laser deposition (PLD). Plotting the temperature where dielectric constant reaches a maximum {T[ɛr(max.)]} versus Bi(Mg0.5,Ti0.5)O3 content present minimum at x = 0.1. On the other hand, the rema…
In this paper, we report the results of depositing CdSe/ZnS quantum dots (QDs) on Cr coated substrates. Compared to such QDs on glass surfaces, the emission peak blueshifts and broadens much more rapidly. The acceleration of the process is presented by showing the relative intensity, position, and full-width as a func…
The performance of many micro- and nanoscale devices depends on the ability to control interfacial thermal transport, which is predominantly mediated by phonons in semiconductor systems. The phonon transmissivity at an interface is therefore a quantity of interest. In this work, an empirical model, termed the thermal…
The effect of shear flow on isothermal crystallization behavior of γ-crystals in metallocene-based isotactic polypropylene melt was investigated by in situ synchrotron wide-angle X-ray diffraction (WAXD). In the sample under weak shear (at strain of 300% for 30 s duration), simultaneous evolution of α- and γ-crystals…
In this study, the use of nanocomposite polyethylene films to extend shelf life of food products and to enhance its barrier and mechanical properties was investigated. Nanocomposite was designated 80%wt LLDPE, 14.28%wt PE-g-MA, and 5.72%wt organoclay and package films were prepared on the “cast-film” line. The physica…
Low frequency dielectric dispersion behavior of the indium doped cadmium zinc telluride single crystal has been investigated. The temperature dependent of dielectric loss shows a broadening peak at high temperatures, which is attributed to thermally activated relaxation process. The large dielectric permittivity can b…
In this paper, we report the phase transition behavior of ternary relaxor ferroelectric single crystals of 0.25Pb(In1/2Nb1/2)O3-0.44Pb(Mg1/3Nb2/3)O3-0.31PbTiO3 subject to a uniaxial mechanical stress up to 400 MPa. The resultant in situ neutron diffraction data are interpreted in terms of the polarization rotation the…
Abstract In this article, the microparticles of polystyrene‐poly(styrene‐co‐sodium 4‐styrenesulfonate) (PS‐PSS) coated by polyaniline (PANI) were prepared and hollow PANI microspheres were further obtained by dissolving the core. First, surface‐sulfonated monodispersed PS was prepared by copolymerization of sodium 4‐s…
Natural Rubber Latex (NRL) and Polyvinyl pyrolidone (PVP) blends with different PVP concentrations were prepared and rheological properties of NRL/PVP blends have been investigated at different speed range. Significant changes of behaviors are found with increased PVP in blends. Yield stress increases with increased P…
Silver (Ag) embedding in indium zinc oxide (IZO) leads to abnormal conductivity behavior for IZO-Ag-IZO (IAI) system. When Ag layer is thinner than a critical Ag thickness, the IAI sample shows semiconductor behavior, and its resistivity is unexpectedly higher than that of IZO but decreases with an increase in Ag thic…
We fabricated three Co2FeSi Heusler compound films at different temperatures (room temperature, 673, and 873 K) by rf sputtering deposition method and a series of (Co2FeSi)x(Al2O3)1−x (0.4 ≲x≤1) granular films at room temperature by co-sputtering method. The structures as well as the temperature behaviors of anomalous…
We have studied the ion doping effects in multiferroic MnWO4 proposing a microscopic model. It is shown that the exchange interaction constants can be changed due to the different ion doping radii. This leads to reduction of the magnetic phase transition temperature TN by doping with non-magnetic ions, such as Zn, Mg,…
The shock compression response of α''-Fe16N2 nanoparticles is studied in order to evaluate the thermo-mechanical stability of the α'' phase under shock loading. Shock compression experiments were performed using the parallel plate impact gas gun set up at velocities near 850 m/s. The experiments were performed at −21…
Electrochemical etching of a (110) oriented Si wafer results in a porous silicon (PSi) layer which exhibits a strong in-plane optical birefringence. We study the refractive index ellipsoid of (110) PSi by angle-resolved optical transmittance measurements and reveal that it is a biaxial crystal. The angle-resolved tran…
Crystallization behavior, dynamic mechanical properties, mechanical properties and rheological properties of isotactic polybutene-1/polypropylene (PB-1/PP) blends prepared by melt-blending the two components through Brabender extruder were mainly studied via POM, DSC, DMA, capillary rheometer and so on, respectively.…
We have systematically investigated the effects of high-temperature annealing on ZnO and ZnO devices using current voltage, deep level transient spectroscopy (DLTS) and Laplace DLTS measurements. Current–voltage measurements reveal the decrease in the quality of devices fabricated on the annealed samples, with the hig…
In situ environmental transmission electron microscopy is employed to study the effect of Au composition in Cu-Au alloys on the orientations of oxide islands during the initial-stage oxidation of Cu-Au(100) alloys. An orientation transition from nucleating epitaxial Cu2O islands to randomly oriented oxide islands is o…
The present work investigates the mixing sequence of montmorillonite (MMT) and polyurethane (PUR) on epoxy resin (EP) properties. Mechanical properties were evaluated and structures analyzed by means of infrared spectroscopy (FTIR), X-ray diffraction (XRD) and transmission electron microscopy (TEM). The measured prope…
The aim of this work is the evaluation of the effects of plasma treatment and the addition of SiO2 on the mechanical properties of carbon fiber/polyurethanes (PUR) composite. A powder impregnation process with integrated inline continuous plasma of carbon fibers was used to produce CF/PUR composite. CF/PUR composite w…
Nanofibers of the composite of alginate (Alg) and carbon nanotube (CNT) were prepared using electrospinning method out of aqueous solutions. Scanning electron microscopy (SEM), transmission electron microscopy (TEM), mechanical measurement, and electrical conductivity were done to characterize the Alg/CNT composite na…